00326nam a2200121Ia 450000500170000000800410001708200180005810000140007624500420009026000460013294200070017899900190018520260325112145.0260325s9999||||xx |||||||||||||| ||und||  a620.0042 R18C  aRao, P.N. 0aCAD/CAM : principles and applications  aChennaibMcgraw Hill Education Pub.c2017  cBK  c270546d270546